发明名称 |
Fluidized bed type reduction apparatus for iron ore particles and method for reducing iron ore particles using the apparatus |
摘要 |
PCT No. PCT/KR95/00182 Sec. 371 Date Oct. 28, 1996 Sec. 102(e) Date Oct. 28, 1996 PCT Filed Dec. 28, 1995 PCT Pub. No. WO96/21045 PCT Pub. Date Jul. 11, 1996A reduction apparatus and a method for efficient reduction of fine iron ores of wide grain range comprising serially arranged a drying/preheating furnace, a first reducing furnace for prereduction and a second reduction furnace for final reduction, each working with bubbling fluidized bed and being connected each to a cyclone for capturing iron ore dust contained in the exhaust gases, having each a tapered shape smoothly expanded outwards and thus considerably decreasing elutriation of fine particles, increasing the reduction efficiency and enhancing the utilization of the reducing gas.
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申请公布号 |
US5785733(A) |
申请公布日期 |
1998.07.28 |
申请号 |
US19960702517 |
申请日期 |
1996.10.28 |
申请人 |
POHANG IRON & STEEL CO., LTD.;RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY;VOEST-ALPINE INDUSTRIEANLAGENBAU GMBH |
发明人 |
LEE, IL OCK;KIM, YONG HA;JUNG, BONG JIN;KIM, HANG GOO;HAUZENBERGER, FRANZ |
分类号 |
C21B11/00;C21B13/00;C21B13/14;(IPC1-7):C21B11/00 |
主分类号 |
C21B11/00 |
代理机构 |
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